Vera C. Rubin Observatory Data Preview 1 中外鲜瞬变现象的识别与光度分类
高能天体物理现象
2025-11-11 v2 天体物理仪器与方法
摘要
Vera C. Rubin Observatory 将很快对南天进行观测，提供在时域天文学中前所未有的深度和天空覆盖范围。作为 commissioning的一部分，Data Preview 1 (DP1) 已发布。它包含了在 2024 年 11 月至 12 月之间的 LSSTComCam 观测活动，涵盖约每个 0.4 平方度的七个字段，提供了在 Legacy Survey of Space and Time 开始后可获得的数据产品的初步 glimpse。本文我们在三个字段中搜索外鲜瞬变现象。我们识别了八个新的可能超新星，以及从 369,644 个差分图像分析对象中挑选出的三个已知超新星。使用 Superphot+进行光度分类，仅对其中一个 Ia 类和一个 II 类超新星获得 >95% 的置信度分类。我们的发现与使用 simsurvey 模拟的超新星检测率预测 个超新星相符。超新星检测率可能受到缺乏合适模板的影响。尽管如此，本工作证明了 DP1 所提供的数据质量，表明 Rubin Observatory 的 Legacy Survey of Space and Time (LSST) 已准备好在时域天文学中实现其发现潜力。
引用
@article{arxiv.2507.22864,
title = {Identification and photometric classification of extragalactic transients in the Vera C. Rubin Observatory's Data Preview 1},
author = {James Freeburn and Igor Andreoni and Kaylee M. de Soto and Cristina Andrade and Akash Anumarlapudi and Tyler Barna and Jonathan Carney and Sushant Sharma Chaudhary and Michael W. Coughlin and Felipe Fontinele Nunes and Sarah Teague and Mickael Rigault and V. Ashley Villar and Gloria Fonseca Alvarez and Federica B. Bianco and Alexandre Boucaud and Dominique Boutigny and Andrew Bradshaw and Hsin-Fang Chiang and Phil N. Daly and Felipe Daruich and Guillaume Daubard and Holger Drass and Laurent Le Guillou and Leanne P. Guy and Patrick Ingraham and M. James Jee and Steven M. Kahn and Yijung Kang and Arun Kannawadi and Lee S. Kelvin and Didier Laporte and Shuang Liang and Nate B. Lust and Mostafa Lutfi and Gabriele Mainetti and Andrés A. Plazas Malagón and Felipe Menanteau and David J. Mills and Marc Moniez and Erfan Nourbakhsh and Russell E. Owen and Maria T. Patterson and John R. Peterson and Wouter van Reeven and Vincent J. Riot and William Roby and David Sanmartim and Jacques Sebag and Nima Sedaghat and Richard A. Shaw and Alysha Shugart and Krzysztof Suberlak and John D. Swinbank and Dan S. Taranu and Charlotte Ward and Christopher Z. Waters and W. M. Wood-Vasey},
journal= {arXiv preprint arXiv:2507.22864},
year = {2025}
}
备注
11 pages, 3 figures, 4 tables, accepted for publication in ApJL